Detailed Weather Data for Project: EUFA

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 57.69 3.91 97.37 1.00 04Nov2017 9 a.m. 59.02 4.31 96.46 21.00 04Nov2017 10 a.m. 61.75 4.38 87.91 100.00 04Nov2017 11 a.m. 73.08 3.38 74.18 302.00 04Nov2017 12 p.m. 73.85 7.20 73.99 346.00 04Nov2017 1 p.m. 75.72 9.75 70.21 336.00 04Nov2017 2 p.m. 78.91 12.09 62.76 564.00 04Nov2017 3 p.m. 81.54 8.72 57.20 462.00 04Nov2017 4 p.m. 82.74 9.22 56.41 355.00 04Nov2017 5 p.m. 83.84 9.67 50.24 229.00 04Nov2017 6 p.m. 82.42 9.17 52.56 118.00 04Nov2017 7 p.m. 80.64 7.12 56.16 9.00 04Nov2017 8 p.m. 59.23 2.88 70.94 0.00 04Nov2017 9 p.m. 77.23 6.23 66.84 0.00 04Nov2017 10 p.m. 76.26 8.33 70.15 0.00 04Nov2017 11 p.m. 76.15 9.03 70.15 0.00 05Nov2017 12 a.m. 76.05 7.22 68.99 0.00 05Nov2017 1 a.m. 76.15 6.38 69.29 0.00 05Nov2017 2 a.m. 76.14 6.13 70.26 0.00 05Nov2017 3 a.m. 76.15 6.44 70.94 0.00 05Nov2017 4 a.m. 75.60 6.19 73.02 0.00 05Nov2017 5 a.m. 74.95 8.80 75.34 0.00 05Nov2017 6 a.m. 73.96 10.83 77.78 0.00 05Nov2017 7 a.m. 73.63 9.17 79.06 1.00 Accuml. Values 1782.70 176.55 1698.21 2844.00 Num. Valid Values 24 24 24 24 Avg. Values 74.28 7.36 70.76 118.50 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 23.49 284.07 70.76 244.53 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2924 definition: xcompl = 1 - (RELH_avg/100) TdC = 17.9778 definition: TdC = TAIR_avg - ((14.55 + (0.114*TAIR_avg))*xcompl +pow((2.5 + 0.007*TAIR_avg)*xcompl, 3) + (15.9 +0.117*TAIR_avg)*pow(xcompl, 14)) del_lambda1 = 0.7254 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.2746 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.2754 definition: Qn = 0.00714*SRAD_avg + 0.00000526*SRAD_avg*pow(TAIR_avg+17.8, 1.87) +0.00000394*pow(SRAD_avg, 2) - 0.00000000239*pow(SRAD_avg, 2)*pow(TAIR_avg-7.2, 2) - 1.02 es_ea = 8.3167 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 8.0225 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.152 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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